JP2008251587A - Part-mounting device and part-mounting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a part-mounting device and a part-mounting method by which tact time can be shortened to a large extent in comparison with conventional devices. <P>SOLUTION: The parts are mounted by repeating the steps of a first step of picking up a lower part P1, moving it to a standby stage 49, picking up an upper part P2 and turn it upside down; a second step of picking up a lower part P1 on a standby stage 49 and transferring it to a mounting stage 48; and a third step of picking up the inverted upper part P2 and mounting it on the lower part P1 on the mounting stage 48. When the lower part P1 on the standby stage 49 is picked up and transferred to the mounting stage 48 in the second stage, a completed part P3, manufactured in the previous mounting step, is picked up and transferred to the standby stage 48 from the mounting stage 48; and, while the third step is being executed, the completed part P3 on the standby stage 49 is collected and the first step is executed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a component mounting apparatus and a component mounting method for mounting an upper component on a lower component.

  A mounting form in which another component (upper component) is mounted on a certain component (lower component) is known as chip-on-chip (CoC) mounting. In this CoC mounting, IC components are stacked three-dimensionally, so that a small and highly integrated package can be realized.

In a conventional component mounting apparatus for manufacturing a chip-on-chip type electronic component, a component supply unit to which a lower component and an upper component are supplied, a mounting stage to which the lower component is transferred from the component supply unit, a component supply unit, and a mounting A transfer head and a mounting head are provided so as to be movable relative to the stage. 5, after the lower part is picked up by the transfer head and transferred to the mounting stage (step ST1), the upper part is picked up by the transfer head and turned upside down (step ST1). ST2) The upper part that is turned upside down is transferred to the mounting head (step ST3) and mounted on the lower part on the mounting stage (step ST4). In such a component mounting apparatus, in addition to the transfer of the lower component to the mounting stage and the upside down of the upper component, the collection of the completed component from the mounting stage (step ST5) is all performed with one head (transfer head). Thus, the production efficiency can be improved with a simple configuration.
JP 2006-93321 A

  However, in the conventional component mounting apparatus, after the mounting process by the mounting head is completed, the completed component is recovered from the mounting stage (step ST5), and the lower component used in the next mounting process is transferred to the mounting stage. Until it comes (step ST1), the mounting process (step ST4) cannot be entered, and there is a problem that waiting time occurs and shortening of the tact time is prevented accordingly.

  Therefore, an object of the present invention is to provide a component mounting apparatus and a component mounting method capable of greatly reducing the tact time as compared with the prior art.

The component mounting apparatus according to claim 1 is a component mounting apparatus that mounts an upper component on a lower component, a component supply unit to which the lower component and the upper component are supplied, and a lower component from the component supply unit. A standby stage to which a lower part is transferred, a mounting stage to which a lower part is transferred from the standby stage, a transfer head provided to be movable relative to the component supply unit, the standby stage, and the mounting stage, transfer A head and a mounting head; and a head operation control unit that controls the operation of the transfer head, the transfer head, and the mounting head. The head operation control unit transfers a lower part of the component supply unit to the transfer head. Picked up and transferred to the standby stage, the upper part of the parts supply unit was picked up by the transfer head and turned upside down, and the transfer head was moved to the standby stage. The lower part on the stage is picked up and transferred to the mounting stage, the upper part turned upside down by the transfer head is picked up by the mounting head, and the upper part is used as the lower part on the mounting stage. When the mounting process for mounting is repeated and the lower part is transferred to the mounting stage by the transfer head, the transfer head picks up the completed part manufactured on the mounting stage in the previous mounting process. While the mounting head is mounting the upper part on the lower part, the transfer head collects the completed part on the standby stage from the component supply unit of the lower part. Transfer to the standby stage, pickup of the upper part from the part supply unit, and upside down are performed.

  The component mounting apparatus according to claim 2 is a component mounting apparatus for mounting an upper component on a lower component, a component supply unit to which the lower component and the upper component are supplied, and a lower component from the component supply unit. Has a pickup stage, a mounting stage to which the lower part is transferred from the standby stage, a mounting head for picking up the upper part and mounting it on the lower part on the mounting stage, and two pickup parts. A transfer head for picking up the completed part manufactured on the mounting stage and the lower part on the standby stage and switching the positions of the completed part and the lower part, and the lower part of the part supply unit. Picked up and transferred to the standby stage, picked up the upper part of the part supply unit, turned upside down and delivered to the mounting head, and finished parts on the standby stage And a transfer head recovering.

  The component mounting method according to claim 3 is a component mounting method of mounting an upper component on a lower component, picking up the lower component of the component supply unit and transferring it to a standby stage, A first step of picking up the components and turning them upside down; a second step of picking up the lower components on the standby stage and transferring them to the mounting stage; and picking up the upper components turned upside down in the first step A mounting step including a third step of mounting the upper part on the lower part on the mounting stage, and when transferring the lower part to the mounting stage in the second step, in the previous mounting step The completed part manufactured on the mounting stage is picked up and transferred to the standby stage, and the collection of the completed part on the standby stage and the first process are performed while the third process is executed. To.

  In the present invention, after the mounting process is completed, the completed parts on the mounting stage are once transferred to the standby stage and collected while the next mounting process is being executed. The lower part to be used is transferred to the standby stage during the current mounting process and waits. After the mounting process is completed, the lower part is transferred to the mounting stage. On the other hand, since the upper part is also turned upside down during the mounting process and is on standby, immediately after the mounting process is completed, the upper part can be picked up and the next mounting process can be started. Therefore, after completion of the mounting process as in the prior art, the completed part is collected, and the tact time is reduced as compared with the conventional one without waiting for the lower part used in the next mounting process to be transferred to the mounting stage. Can be greatly shortened.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of a component mounting apparatus according to one embodiment of the present invention, FIG. 2 is a control system diagram of the component mounting apparatus according to one embodiment of the present invention, and FIG. 3 is a component mounting according to one embodiment of the present invention. FIG. 4 is a flowchart of the work process of the component mounting apparatus according to the embodiment of the present invention.

  In FIG. 1, a component mounting apparatus 1 includes a base 2 having a horizontal upper surface, and a mounting head moving guide 3 extending in one direction in the horizontal plane (referred to as the Y-axis direction) and transfer above the base 2 Head movement guides 4 are provided side by side in the Y-axis direction. A mounting standby table 5 is provided in the front area of the mounting head moving guide 3 of the base 2, and a component supply / recovery table 6 is provided in the front area of the transfer head moving guide 4 of the base 2. Further, a transfer head support column 7 is erected in the front area of the mounting standby table 5 of the base 2.

The mounting head movement guide 3 is provided with a mounting head support portion 8, and the mounting head support portion 8 is movable in the Y-axis direction along the mounting head movement guide 3. A mounting head 9 is provided below the mounting head support 8 so as to be movable up and down relative to the mounting head support 8. A mounting nozzle 10 is provided below the mounting head 9 so as to extend downward.

  The transfer head moving guide 4 supports one end of a transfer head support portion 11 extending in a direction (X-axis direction) in a horizontal plane orthogonal to the transfer head moving guide 4. It is movable along the head movement guide 4 in the Y-axis direction. A transfer head 12 is built in the other end of the transfer head support 11, and a transfer nozzle 13 is provided below the transfer head 12 so as to extend downward. The transfer head support portion 11 is rotatable about the X axis with a portion supported by the transfer head moving guide 4 as a fulcrum, so that the direction of the transfer head 12 (the direction of the transfer nozzle 13) can be switched up and down. It has become.

  The mounting standby table 5 is movable in a horizontal plane by a mounting standby table moving mechanism 14 provided on the base 2. The mounting standby table moving mechanism 14 is mounted on the mounting standby Y-axis table 14a fixed to the base 2, the mounting standby X-axis table 14b provided on the mounting standby Y-axis table 14a, and the mounting standby Y-axis table 14a. The mounting standby X drive mechanism 41 moves the mounting standby X-axis table 14b in the Y-axis direction, and the mounting standby X drive mechanism 42 moves the mounting standby table 5 in the X-axis direction on the mounting standby X-axis table 14b.

  The component supply / recovery table 6 is movable in a horizontal plane by a component supply / recovery table moving mechanism 15 provided on the base 2. The parts supply / recovery table moving mechanism 15 includes a supply / recovery Y-axis table 15a fixed to the base 2, a supply / recovery X-axis table 15b provided on the supply / recovery Y-axis table 15a, and a supply / recovery Y-axis table 15a. The supply / recovery Y drive mechanism 43 moves the supply / recovery X-axis table 15b in the Y-axis direction, and the supply / recovery X-drive mechanism 44 moves the component supply / recovery table 6 in the X-axis direction on the supply / recovery X-axis table 15b.

  A transfer head support member 16 is provided at the upper end of the transfer head support column 7 so as to be movable up and down with respect to the transfer head support column 7. A transfer head 17 is provided at the lower end of the transfer head support member 16. Is provided. An arm turning shaft 18 extending downward is provided at the lower portion of the transfer head 17, and a central portion of a turning arm 19 extending horizontally is fixed to the lower end of the arm turning shaft 18. A transfer nozzle 20 is provided at each end of the swivel arm 19 so as to extend downward.

  In FIG. 2, the control device 30 included in the component mounting apparatus 1 moves the mounting head support unit 8 along the mounting head moving guide 3 and moves the mounting head 9 up and down with respect to the mounting head support unit 8. Mounting head lifting mechanism 32 to be mounted, mounting head suction mechanism 33 to cause the mounting nozzle 10 to perform a suction operation, transfer head moving mechanism 34 to move the transfer head support portion 11 along the transfer head moving guide 4, and transfer head 12 to be transferred Adsorption operation to the transfer head raising / lowering mechanism 35 that moves up and down relative to the head support 11, the transfer head reversing mechanism 36 that rotates the transfer head support 11 around the X axis (the direction of the transfer head 12 is turned upside down), and the transfer nozzle 13. A transfer head suction mechanism 37 for moving the transfer head and a transfer head for moving the transfer head support member 16 up and down relative to the transfer head support column 7 The lowering mechanism 38, the arm turning mechanism 39 for turning the arm turning shaft 18 about the vertical axis, the transfer head suction mechanism 40 for causing the transfer nozzle 20 to perform the suction operation, the mounting standby Y drive mechanism 41, and the mounting standby X described above. Operation control of the drive mechanism 42, the supply / recovery Y drive mechanism 43, and the supply / recovery X drive mechanism 44 is performed.

Further, the control device 30 includes the positions of the nozzle portions (mounting nozzle 10, transfer nozzle 13, both transfer nozzles 20) of the mounting head 9, the transfer head 12, and the transfer head 17 and the mounting standby table 5. Detection signals from a plurality of sensors (collectively referred to as sensors 45) for detecting the positions of the component supply / recovery tables 6 are input. The control device 30 controls the operation of the mechanisms 31 to 44 based on the detection signals from the sensors 45.

  In FIG. 1, a mounting stage 48 and a standby stage 49 are provided on the mounting standby table 5, and a pallet-shaped lower component supply unit 50, an upper component supply unit 51, and a finished component are provided on the component supply / recovery table 6. A collection unit 52 is provided. The lower part supply unit 50 is supplied with a lower part P1 by a lower part supply unit (not shown), and the upper part supply unit 51 is supplied with an upper part P2 by an upper part supply unit (not shown). Further, the completed part collection unit 52 transports and collects a completed part P3 manufactured by mounting the upper part P2 on the lower part P1. The lower part P1 is supplied to the lower part supply unit 50 with the joint surface with the upper part P2 facing upward, and the upper part P2 has the joint surface with the lower part P1 facing upward. It is supplied to the upper part supply unit 51.

  Next, a component mounting process in which the component mounting apparatus 1 mounts the upper component P2 on the lower component P1 will be described with reference to FIGS. A component mounting program 47 is stored in the memory unit 46 (FIG. 2) capable of exchanging data with the control device 30, and the control device 30 drives the mechanisms 31 to 44 according to the component mounting program 47 to Execute the mounting process.

  The control device 30 picks up (sucks) the lower part P1 of the lower part supply unit 50 to the transfer head 12 and transfers it to the standby stage 49 (FIG. 3A, step S1 in FIG. 4), and then the upper part. The upper part P2 of the supply unit 51 is picked up by the transfer head 12, and the upper part P2 is turned upside down (FIG. 3B, step S2 in FIG. 4). Then, the mounting standby table 5 is moved in a direction to approach the transfer head 17, and the mounting head 9 that has been mounted on the lower part P 1 of the upper part P 2 is moved above the upper part P 2 that is turned upside down by the transfer head 12. It is moved (FIG. 3 (c)).

  When the mounting head 9 is moved above the upper part P2, the position (placement place) of the lower part P1 and the completed part P3 on the mounting standby table 5 is switched by the transfer head 17 (step S3 in FIG. 4). . At substantially the same time, the upper part P2 turned upside down by the transfer head 12 is picked up (sucked) by the mounting head 9, and the upper part P2 is transferred from the transfer head 12 to the mounting head 9 (FIG. 3 (d), Step S4 in FIG. Here, the lower part P1 and the completed part P3 on the mounting standby table 5 by the transfer head 17 are replaced with two pickup units provided in the transfer head 17, that is, two transfer nozzles 20 with a standby stage. After picking up (sucking) the lower part P1 on 49 and the completed part P3 on the mounting stage 48 (this completed part P3 was manufactured in the previous mounting process), the swivel arm 19 is horizontally moved 180 degrees. The lower part P1 on the standby stage 49 is transferred to the mounting stage 48, and the completed part P3 on the mounting stage 48 is transferred to the standby stage 49.

When the position of the lower part P1 on the mounting standby table 5 and the completed part P3 on the mounting stage 48 by the transfer head 17 and the pick-up of the upper part P2 by the mounting head 9 are finished, the control device 30 moves the transfer head 12. Is turned upside down and the transfer nozzle 13 is directed downward (step S5 in FIG. 4), the mounting standby table 5 is moved away from the transfer head 17, and the mounting head 9 is moved above the mounting stage 48. (FIG. 3E). Then, the mounting head 9 is lowered, and the upper part P2 picked up by the mounting head 9 is mounted on the lower part P1 on the mounting stage 48 (step S6 in FIG. 4). The control device 30 causes the transfer head 12 to pick up the completed component P3 on the standby stage 49 and transfer it to the completed component collection unit 52 while the mounting head 9 is mounting the lower component P1 on the upper component P2. Then, the lower part P1 of the lower part supply unit 50 is picked up by the transfer head 12 and transferred to the standby stage 49 (FIG. 3A).
4, and then the upper part P2 of the upper part supply unit 51 is picked up by the transfer head 12 and turned upside down (FIG. 3B, step S2 of FIG. 4).

  Thus, in the component mounting apparatus 1 according to the present embodiment, the component supply unit (the lower component supply unit 50 and the upper component supply unit 51), the standby stage 49, the mounting stage 48, the component supply unit, and the standby stage. 49, the transfer head 12, the transfer head 17, and the mounting head 9 provided so as to be relatively movable with respect to the mounting stage 48, and a head operation control means for controlling the operation of the transfer head 12, the transfer head 17, and the mounting head 9. 60 (consisting of the control device 30 and the above-described mechanisms 31 to 44 whose operation is controlled by the control device 30). The head operation control means 60 has the lower component P1 of the component supply section. The first work is picked up by the transfer head 12 and transferred to the standby stage 49, and the upper part P2 of the component supply unit is picked up by the transfer head 12 and turned upside down. (Steps S1 and S2 in FIG. 4), a second step (Step S3 in FIG. 4) in which the transfer head 17 picks up the lower part P1 on the standby stage 49 and transfers it to the mounting stage 48, and the transfer head 12 The mounting process including the third process (steps S4 and S6 in FIG. 4) in which the upper part P2 turned upside down by the mounting head 9 is picked up by the mounting head 9 and the upper part P2 is mounted on the lower part P1 on the mounting stage 48 is repeated. As a result, a finished part (chip-on-chip type electronic part) P3 in which the upper part P2 is mounted on the lower part P1 is manufactured one after another.

  In the second process, when the lower part P1 is transferred to the mounting stage 48 by the transfer head 17, the completed part P3 manufactured on the mounting stage 48 in the previous mounting process is picked up by the transfer head 17. (Step S3 in FIG. 4) and while the third step is being executed (the mounting head 9 mounts the upper part P2 on the lower part P1). 4), the transfer head 12 collects the completed part P3 on the standby stage 49 (step S7 in FIG. 4), transfers the lower part P1 from the component supply unit to the standby stage 49 (step S1 in FIG. 4), and the upper side. The pickup of the component P2 from the component supply unit and the upside down (step S2 in FIG. 4) are performed.

  That is, in the component mounting apparatus 1 according to the present embodiment, after the mounting process is completed, the completed component P3 on the mounting stage 48 is once transferred to the standby stage 49 and collected while the next mounting process is being performed. The lower part P1 used in the next mounting process is transferred to the standby stage 49 during the current mounting process and waits. After the mounting process is completed, the lower part P1 is transferred to the mounting stage 48. The On the other hand, since the upper part P2 is also turned upside down during the mounting process and is on standby, immediately after the mounting process is completed, the upper part can be picked up and the next mounting process can be started. Therefore, after completion of the mounting process as in the prior art, the completed part P3 is recovered, and there is no need to wait for the lower part P1 used in the next mounting process to be transferred to the mounting stage 48. The tact time can be greatly reduced.

  Although the embodiments of the present invention have been described so far, the present invention is not limited to those shown in the above-described embodiments. For example, the transfer head 17 transfers the lower part P1 on the standby stage 49 to the mounting stage 48, and at the time of this transfer, the completed part P3 on the mounting stage 48 manufactured in the previous mounting process. However, the configuration is not necessarily limited, but the transfer head 17 has two pickup units (transfer nozzles 20) as shown in the above-described embodiment. If the configuration is such that the completed part P3 on the mounting stage 48 and the lower part P1 on the standby stage 49 are respectively picked up and the positions of these parts P1 and P3 are replaced almost simultaneously, There is an advantage that the parts P1 and P3 can be transferred in a short time with a simple configuration.

  The tact time can be greatly shortened compared to the conventional case.

The perspective view of the component mounting apparatus in one embodiment of this invention Control system diagram of component mounting apparatus according to one embodiment of the present invention Work process explanatory drawing of the component mounting apparatus in one embodiment of this invention The flowchart of the work process of the component mounting apparatus in one embodiment of this invention Flow chart of work process of conventional component mounting equipment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Component mounting apparatus 9 Mounting head 12 Transfer head 17 Transfer head 30 Control apparatus 48 Mounting stage 49 Standby stage 50 Lower part supply part (component supply part)
51 Upper part supply part (part supply part)
60 Head operation control means P1 Lower part P2 Upper part P3 Completed part

Claims (3)

A component mounting apparatus for mounting an upper component on a lower component, a component supply unit to which the lower component and the upper component are supplied, a standby stage to which the lower component is transferred from the component supply unit, and the standby stage A mounting stage to which a lower part is transferred from, a transfer head provided so as to be relatively movable with respect to the component supply unit, the standby stage and the mounting stage, a transfer head and a mounting head, the transfer head, A transfer head and head operation control means for controlling the operation of the mounting head,
The head operation control means causes the lower part of the part supply unit to be picked up by the transfer head and transferred to the standby stage, causes the upper part of the part supply part to be picked up by the transfer head and inverted upside down, The transfer head picks up the lower part on the standby stage and transfers it to the mounting stage. The upper part turned upside down by the transfer head is picked up by the mounting head, and the upper part is picked up on the mounting stage. When the mounting process for mounting on the lower part is repeatedly performed and the lower part is transferred to the mounting stage by the transfer head, the completed part manufactured on the mounting stage in the previous mounting process is transferred to the mounting stage. While the mounting head picks up the mounting head and transfers it to the standby stage, the mounting head mounts the upper part on the lower part. , Causing the transfer head to collect a completed part on the standby stage, transfer a lower part from the component supply unit to the standby stage, pick up an upper part from the component supply unit, and perform upside down. A component mounting device.   A component mounting apparatus for mounting an upper component on a lower component, a component supply unit to which the lower component and the upper component are supplied, a standby stage to which the lower component is transferred from the component supply unit, and the standby stage A mounting stage on which the lower part is transferred, a mounting head that picks up the upper part and mounts it on the lower part on the mounting stage, and two pickup parts, and is completed on the mounting stage A transfer head for picking up a part and a lower part on the standby stage, respectively, and replacing the position of the completed part and the lower part; picking up a lower part of the part supply unit and transferring it to the standby stage; A transfer head for picking up the upper part of the part supply unit, turning it upside down, delivering it to the mounting head, and collecting the finished part on the standby stage; Component mounting apparatus according to claim.   A component mounting method for mounting an upper part on a lower part, wherein the lower part is picked up and transferred to a standby stage, and the upper part of the part supply part is picked up and turned upside down. A second step of picking up the lower part on the standby stage and transferring it to the mounting stage; and picking up the upper part that has been turned upside down in the first step and placing the upper part on the lower side of the mounting stage A mounting process including a third process for mounting on a component is repeated, and when the lower part is transferred to the mounting stage in the second process, the completed part manufactured on the mounting stage in the previous mounting process is picked up. The component mounting method is characterized in that the transfer of the completed parts on the standby stage and the first step are performed while the third step is being carried out and transferred to the standby stage. .

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